Objective to investigate the lung function of the normal subjects living in Hebei province and its correlative factors such as living circumstance, age, height, and body weight.

目的探讨河北省正常人群肺功能的生理预计值及其不同生活环境、年龄、身高、体重等因素与肺功能的关系。

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And in case you are considering using your body after playing to make a living, over 50% of you players qualify for some form of disability by age 50.

FORBES: Opportunity From Adversity: The NFL Bargaining Extension As A Player B-School